To GTB or not to
AO Silver Member
Join Date: Nov 2007
I think the latest SW for your ECU is 1037507422. So I see no reason why you have problems with upgrading SW with official tool.
But you should not upload that with MPPS because you need complete ECU upgrade, not just partial flash. MPPS only writes one block of the Flash memory. You can brick your ECU if you try to do that kind of update with MPPS or any other tool over OBD.
Upgrade should be done only over official tool if you don't want any problems.